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Landsat-5 TM reflective-band absolute radiometric calibration / Gyanesh Chander in IEEE Transactions on geoscience and remote sensing, vol 42 n° 12 (December 2004)
[article]
Titre : Landsat-5 TM reflective-band absolute radiometric calibration Type de document : Article/Communication Auteurs : Gyanesh Chander, Auteur ; D.L. Helder, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 2747 - 2760 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] dégradation d'image
[Termes IGN] étalonnage radiométrique
[Termes IGN] réflectance spectrale
[Termes IGN] réponse spectrale
[Termes IGN] Thematic MapperRésumé : (Auteur) The Landsat-5 Thematic Mapper (TM) sensor provides the longest running continuous dataset of moderate spatial resolution remote sensing imagery, dating back to its launch in march 1984. Historically, the radiometric calibration procedure for this imagery used the instrument's response to the Internal Calibrator (IC) on a scene-by-scene basis to determine the gain and offset of each detector. Due to observed degradations in the IC, a new procedure was implemented for U.S.-processed data in May 2003. This new calibration procedure is based on a lifetime radiometric calibration model for the instrument's reflective bands (1-5 and 7) and is derived, in part, from the IC response without the related degradation effects and is tied to the cross calibration with the Landsat-7 Enhanced Thematic Mapper Plus. Reflective-band absolute radiometric accuracy of the instrument tends to be on the order of 7 % to 10 %, based on a variety of calibration methods. Numéro de notice : A2004-535 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2004.836388 En ligne : https://doi.org/10.1109/TGRS.2004.836388 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27052
in IEEE Transactions on geoscience and remote sensing > vol 42 n° 12 (December 2004) . - pp 2747 - 2760[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-04121 RAB Revue Centre de documentation En réserve L003 Disponible Landsat-7 ETM+ on-orbit reflective-band radiometric stability and absolute calibration / B.L. Markham in IEEE Transactions on geoscience and remote sensing, vol 42 n° 12 (December 2004)
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Titre : Landsat-7 ETM+ on-orbit reflective-band radiometric stability and absolute calibration Type de document : Article/Communication Auteurs : B.L. Markham, Auteur ; K.J. Thome, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 2810 - 2820 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] enhanced thematic mapper+
[Termes IGN] étalonnage de capteur (imagerie)
[Termes IGN] étalonnage en vol
[Termes IGN] Landsat
[Termes IGN] réflectivité
[Termes IGN] stabilitéRésumé : (Auteur) Launched in April 1999, the Landsat-7 Enhanced Thematic Mapper Plus (ETM+) instrument is in its sixth year of operation. The ETM+ instrument has been the most stable of any of the Landsat instruments. To date, the best onboard calibration source for the reflective bands has been the Full Aperture Solar Calibrator, a solar-diffuser-based system, which has indicated changes of between 1% to 2% per year in the ETM+ gain for bands 1-4 and 8 and less than 0.5%/year for bands 5 and 7. However, most of this change is believed to be caused by changes in the solar diffuser panel, as opposed to a change in the instrument's gain. This belief is based partially on vicarious calibrations and observations of "invariant sites," hyperarid sites of the Sahara and Arabia. Weighted average slopes determined from these datasets suggest changes of 0.0% to 0.4% per year for bands 1-4 and 8 and 0.4% to 0.5% per year for bands 5 and 7. Absolute calibration of the reflective bands of the ETM+ is consistent with vicarious observations and other sensors generally at the 5% level, though there appear to be some systematic differences. Numéro de notice : A2004-538 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2004.836389 En ligne : https://doi.org/10.1109/TGRS.2004.836389 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27055
in IEEE Transactions on geoscience and remote sensing > vol 42 n° 12 (December 2004) . - pp 2810 - 2820[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-04121 RAB Revue Centre de documentation En réserve L003 Disponible Calibrating geodetic instruments: standards for calibration and testing / P. Savvaidis in Geoinformatics, vol 7 n° 7 (01/11/2004)
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Titre : Calibrating geodetic instruments: standards for calibration and testing Type de document : Article/Communication Auteurs : P. Savvaidis, Auteur ; I.M. Ifadis, Auteur ; I.D. Doukas, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 18 - 21 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie
[Termes IGN] contrôle qualité
[Termes IGN] distancemètre
[Termes IGN] erreur systématique
[Termes IGN] étalonnage d'instrument
[Termes IGN] instrument de géodésie
[Termes IGN] instrument de mesure
[Termes IGN] instrument de nivellement
[Termes IGN] niveau (instrument)
[Termes IGN] précision des mesures
[Termes IGN] récepteur GPS
[Termes IGN] tachéomètre électronique
[Termes IGN] théodoliteRésumé : (Auteur) Calibration is a set of operations that establish, under specified conditions, the relationship between values of quantities indicated by measuring instrument or system, and the corresponding values realized by standards. Calibration is achieved by means of direct comparison against measurement standards certified reference materials. In geodetic works, there is always the need to ensure the quality of the carried out measurements, in agreement with the proper per project accuracy specifications. Furthermore, it has been demonstrated that the measuring accuracy of the instruments weakens during use. In order to achieve the accuracy of the measurements to comply with the specifications or standards, the calibration of the instruments used (from optical theodolites and levels to EDM instruments, Total Stations and GPS systems) is of paramount importance. Numéro de notice : A2004-467 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26987
in Geoinformatics > vol 7 n° 7 (01/11/2004) . - pp 18 - 21[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-04071 SL Revue Centre de documentation Revues en salle Disponible Evaluation of hyperspectral remote sensing as a means of environmental monitoring in the St Austell China clay (kaolin) region, Cornwall, UK / R.J. Ellis in Remote sensing of environment, vol 93 n° 1 (30/10/2004)
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Titre : Evaluation of hyperspectral remote sensing as a means of environmental monitoring in the St Austell China clay (kaolin) region, Cornwall, UK Type de document : Article/Communication Auteurs : R.J. Ellis, Auteur ; P.W. Scott, Auteur Année de publication : 2004 Article en page(s) : pp 118 - 130 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Argile
[Termes IGN] carte géologique
[Termes IGN] Cornouailles
[Termes IGN] éclairement lumineux
[Termes IGN] étalonnage radiométrique
[Termes IGN] image HYMAP
[Termes IGN] image hyperspectrale
[Termes IGN] minerai
[Termes IGN] surveillance géologiqueRésumé : (Auteur) The St. Austell granite of Cornwall, UK contains internationally important deposits of kaolin (china clay), the formation of which result from the alteration of a composite pluton of mineralogically and texturally different primary granite units. To assess the applicability of hyperspectral remote sensing in the St. Austell china clay region, one line of airborne HyMap® hyperspectral data was acquired. These data were processed to correct for atmospheric and illumination effects by calibration from radiance to reflectance data, so that mineral abundance maps could be produced. Minerals associated with the primary granite and its subsequent kaolinisation were identified by image processing and used as mapping endmembers. These minerals include kaolinite, kaolinite with smectite, montmorillonite, muscovite, lepidolite (a lithium mica) and topaz.
Hyperspectral data analysis allowed for the identification of the different primary granite units. The spectrally observed compositional differences of the biotite and topaz granite units of the region allowed for fingerprinting of the source of mined waste material as originating from specific pits. The majority of waste tips in the region originate from the nearest china clay workings. However, waste material used in the construction of a mica dam and also as backfill in a disused pit is successfully identified to have been transported across a mapped granite boundary for storage. The effect of mining and mineral processing on the abundance and spatial distribution of minerals in the region is also evident. Wastetips are classified as containing the greatest abundance of mica. This distribution results from the separation of kaolinite during the mineral processing stages. Kaolinite in lower abundance, however, is also identified within these waste areas and is the result of a less than 100% recovery by mining and processing.Numéro de notice : A2004-425 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2004.07.004 En ligne : https://doi.org/10.1016/j.rse.2004.07.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26952
in Remote sensing of environment > vol 93 n° 1 (30/10/2004) . - pp 118 - 130[article]Photogrammetric reconstruction of the Great Buddha of Bamiyan, Afghanistan / Armin Grun in Photogrammetric record, vol 19 n° 107 (September - November 2004)
[article]
Titre : Photogrammetric reconstruction of the Great Buddha of Bamiyan, Afghanistan Type de document : Article/Communication Auteurs : Armin Grun, Auteur ; Fabio Remondino, Auteur ; L. Zhang, Auteur Année de publication : 2004 Article en page(s) : pp 177 - 199 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie terrestre
[Termes IGN] appariement d'images
[Termes IGN] correction d'image
[Termes IGN] étalonnage géométrique
[Termes IGN] méthode des moindres carrés
[Termes IGN] orientation absolue
[Termes IGN] orientation relative
[Termes IGN] photogrammétrie terrestre
[Termes IGN] reconstruction 3D
[Termes IGN] statue
[Termes IGN] visualisation 3DRésumé : (Auteur) Il y a presque 1700 ans, dans la vallée de Bamiyan, en Afghanistan, deux grandes statues du Bouddha ont été sculptées dans la roche sédimentaire de la région. Elles étaient hautes de 53 et 38 mètres respectivement; la statue la plus haute était considérée comme la plus grande représentation d'un Bouddha dans le monde entier. En mars 2001 la milice des Talibans a démoli ces statues colossales. Après leur destruction, notre groupe a exécuté une reconstruction à l'ordinateur du grand Bouddha, qui peut servir de base pour sa reconstruction physique. Dans cet article, nous décrivons les résultats obtenus avec la reconstruction en trois dimensions (3D) de la statue, sous forme d'images ; la reconstruction a été exécutée avec trois différents groupes d'images et en employant différents algorithmes et techniques photogrammétriques. Numéro de notice : A2004-336 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.0031-868X.2004.00278.x En ligne : https://doi.org/10.1111/j.0031-868X.2004.00278.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26863
in Photogrammetric record > vol 19 n° 107 (September - November 2004) . - pp 177 - 199[article]Réservation
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